1
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Species
acanthicarpa
Hook.
common name:
flatspine burr ragweed
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2
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Species
ambrosioides
(Cav.) Payne
common name:
ambrosia leaf burr ragweed
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3
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Species
aptera
DC.
syn. Ambrosia trifida var. texana
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4
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5
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Varietas
artemisiifolia
common name:
annual ragweed
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6
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Varietas
elatior
(L.) Descourtils
common name:
annual ragweed
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7
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Varietas
paniculata
(Michx.) Blank.
common name:
annual ragweed
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8
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Species
bidentata
Michx.
common name:
lanceleaf ragweed, southern ragweed
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9
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Species
californica
Rydb.
syn. Ambrosia psilostachya
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10
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Species
canescens
(Benth.) Gray
common name:
hairy ragweed
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11
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Species
chamissonis
(Less.) Greene
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12
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Varietas
bipinnatisecta
(Less.) J.T. Howell
syn. Ambrosia chamissonis
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13
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Species
cheiranthifolia
Gray
common name:
Rio Grande ragweed
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14
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Species
chenopodiifolia
(Benth.) Payne
common name:
San Diego burr ragweed
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15
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Species
confertiflora
DC.
common name:
weakleaf burr ragweed
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16
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Species
cordifolia
(Gray) Payne
common name:
Tucson burr ragweed
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17
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Species
coronopifolia
Torr. & Gray
syn. Ambrosia psilostachya
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18
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Species
cumanensis
auct. non Kunth
syn. Ambrosia psilostachya
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19
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Species
deltoidea
(Torr.) Payne
common name:
triangle burr ragweed
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20
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Species
dumosa
(Gray) Payne
common name:
burrobush
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21
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Species
elatior
L.
syn. Ambrosia artemisiifolia var. elatior
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22
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Species
eriocentra
(Gray) Payne
common name:
woolly fruit burr ragweed
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23
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Species
glandulosa
Scheele
syn. Ambrosia artemisiifolia var. paniculata
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24
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Species
grayi
(A. Nels.) Shinners
common name:
woollyleaf burr ragweed
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25
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Species
hispida
Pursh
common name:
coastal ragweed
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26
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Species
ilicifolia
(Gray) Payne
common name:
hollyleaf burr ragweed
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27
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Species
linearis
(Rydb.) Payne
common name:
streaked burr ragweed
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28
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Species
monophylla
(Walt.) Rydb.
syn. Ambrosia artemisiifolia var. paniculata
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29
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Species
paniculata
Michx.
syn. Ambrosia artemisiifolia var. paniculata
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30
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Species
peruviana
Willd.
common name:
Peruvian ragweed
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31
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32
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Varietas
californica
(Rydb.) Blake
syn. Ambrosia psilostachya
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33
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Varietas
coronopifolia
(Torr. & Gray) Farw.
syn. Ambrosia psilostachya
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34
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Varietas
lindheimeriana
(Scheele) Blank.
syn. Ambrosia psilostachya
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35
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Species
pumila
(Nutt.) Gray
common name:
dwarf burr ragweed
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36
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Species
rugelii
Rydb.
syn. Ambrosia psilostachya
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37
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Species
sandersonii
Welsh
syn. Hymenoclea sandersonii
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38
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Species
tenuifolia
Spreng.
common name:
slimleaf burr ragweed
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39
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Species
tomentosa
Nutt.
common name:
skeletonleaf burr ragweed
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40
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Species
trifida
L.
common name:
crownweed, giant ragweed
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41
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Varietas
aptera
(DC.) Kuntze
syn. Ambrosia trifida var. texana
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42
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Varietas
integrifolia
(Muhl. ex Willd.) Torr. & Gray
syn. Ambrosia trifida var. trifida
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43
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Varietas
texana
Scheele
common name:
Texan great ragweed
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44
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Varietas
trifida
common name:
great ragweed
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45
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Species
x helenae
Rouleau
|
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46
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Species
x intergradiens
Wagner
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